This product appears in the Watts Water Quality Catalogue 2025
Rolls-Royce
Bureau Veritas
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National DefenceOverview
Specifications
| Media type | Black granular catalytic media (insoluble; not consumed) |
|---|---|
| Target contaminants | Dissolved iron and manganese |
| Mesh size | 10 x 40 |
| Effective size | 0.48 mm |
| Uniformity coefficient | 2.7 |
| Specific gravity | 2.0 gm/cc |
| Bulk density | 40-45 lbs/cu. ft. |
| Service flow rate | 3.5-5 gpm/ft² |
| Backwash rate | 10-12 gpm/ft² |
| Backwash bed expansion | 20-40% of bed depth (min.) |
| Bed depth | 30-36 in |
| Freeboard | 50% of bed depth (min.) |
| Water pH range | 6.8-9.0 |
| Maximum water temperature | 100°F / 38°C |
For reliable operation the dissolved oxygen content must be at least 15% of the iron (or iron+manganese) content, alkalinity greater than twice the combined sulfate and chloride concentration, free chlorine below 0.5 ppm, and hydrogen sulfide, oil and polyphosphates removed upstream. Low-D.O. water can be pre-aerated; low-pH water can be raised with Corosex, calcite or soda ash ahead of the Birm filter.
Documents
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice.
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
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